Device for holding outboard motors to boats



Jan. 9, 1951 B. CARPENTER 2,537,651

DEVICE FOR HOLDING OUTBOARD MOTORS TO BOATS Filed Sept. 2, 1947 woz? Z, far/vena zzeff Wyy/ f/f Patented Jan. 9, 1951 DEVICE FOR HOLDING OUTBOARD MOTORS TO BOATS Byron L. Carpenter, Minneapolis, Minn.

Application September 2, 1947, Serial N o. 771,675

The principal object of this invention is to provide a device for rigidly anchoring outboard motors to boats and thus preventing the accidental detachment of the motor from the boat and its possible loss during operation.

A still further object of this invention is to provide a device for vertically connecting an outboard motor to a boat and thereby eliminating possible undesirable vibrations.

A still further object of this invention is to provide an outboard motor attaching means that is easily and quickly attached or detached and one that is so designed as to t various sizes of outboard motors.

A still further object of this invention is to provide a devicefor rigidly connecting an outboard motor to a boat that is rened in appearance, economical in manufacture, and durable in use.

These and other objects will be apparent to those skilled in the art.

My invention consists in the construction, arrangement, and combination of the various parts of the device, whereby the objects contemplated are attained as hereinafter more fully set forth, pointed out in my claims, and illustrated in the accompanying drawings, in which:

Fig. 1 is a front view of my device detachably secured to an outboard motor' and boat.

Fig. 2 is a side-sectional view of my device, taken on line 2 2 of Fig. l, and more fully illustrates its construction.

The universal method of securing outboard motors to boats is Iby the use of screw clamps. Substantially all outboard motors have two of these manually operated screw clamps integrally formed i on their fronts. It is most common, however, for these clamps to become loosened in use, with the result that the motor kicks itself free from the boat and then sinks into the water and is lost. To prevent the total loss of their motors, some users tie one end of a rope to the motor and the other end of the rope to the boat. Obviously, this procedure is 4not satisfactory. I have overcome such problems by providing an anchoring device that will hold the outboard motor downwardly on the rear end portion of a boat even though the screw clamps become loosened.

In the drawings, I have used the numeral I to designate the stern of a boat and the numeral I I to designate an ordinary outboard motor secured thereon. This motor has the usual two bracket clamps I2 and I3 and their manually operated hand screws i4 and I5, respectively. It is to such equipment that I secure my device and which I will now describe in detail.

5 Claims. (Cl. 248-4) handed threads.

2 The numeral I9 designates a cylinder. The numeral I6 designates a shaft threaded into the lower end portion of the member I9 with left The numeral il' designates a hook end on the bottom free end of the shaft I6 designed to detachably engage a screw eye I8,

. which is screwed or bolted onto the inside of the boat stern, as shown in the drawings. The 11umera] 2E! designates a threaded shaft threaded into the upper end portion of the member I9 with right handed threads. The numeral 2 I designates l a winged lock nut threaded on the shaft 20 and capable of engaging the topy of the member I3. The upper end of the shaft 2U is iirst bent outwardly and slightlyupwardly, then curved to l into a second horizontal hump 23, then inwardly and slightly downwardly where its end is secured to itself, as shown in Fig. 1. By this construction, a T is provided with two horizontal humps at each end with the two humps at each side of the vertical plane of the member I9 and equally disf tant therefrom. The numeral 24 designates a rod member having an eye 25 formed on its bottom,

which loosely surrounds the hump 22 of thermember 2l). The numeral 26 designates a hook portion formed on its upper endfand designed to detachably embrace the length of the member I5.

The numeral 2l designates a similar member having its lower end formed into an eye 28, loose-ly L embracing the hump portion 23. The upper free end of this member 2'.' is formed into a hook portion 29, designed to detachably embrace the t length of the member I4, as shown in Fig. 2. The

numeral 30 designates a pin slidably extending through the cente-r portion of the member I9 to facilitate the manual rotation of that member.

To use my device, it is merely necessary to hook the lower end of the' shaft i6 through the eye I8, as shown in Fig. 2, and place the two hook portions 26 and 29 around the screw portions I4 and `I5 of the motors screw clamps and rotate the member I9 to the right to tighten the device. Thus it will be seen that while the ordinary screw clamps of the motor normally secure the motor to the stern laterally, my device secures the motor to the boat vertically. Even though the screw clamps were loose on the boat, my device would hold the U-portions of the screw clamps downwardly around the upper marginal edge of the boat so that the motor could not become accidentally detached from the boat and lost. As the shaft I6 is of left handed thread and the shaft 2li of right handed thread, the tightening. of the device is rapid. After the device has been properly tightened to hold the motor downwardly,

the wing nut 2l may be tightened to lock the member I9 against rotation. The humps 22 and 23 hold the two members 24 and 2'! normally apart, but the upper ends of these members may toggle, as shown by dotted lines in Fig. 1, to not only fit the screw clamps of dierent motors, but also to be moved inwardly for detaching the device from the motor. To detach the device from the motor it is merely necessary to rotate the member I9 to the left to elongate the device suiiiciently for the hooks 26 and 29 to move off of and from around the members I4 and I5. To install my device on a boat, it is merely necessary to attach the screw eye I8. By the hooks 26 and 29 frictionally engaging the screws i4 and I these screws will be prevented thereby from becoming loose from vibration. This feature is a highly desirable additional result from the use of my device. The device may be permanently secured to the motor by bending the members 26 and 29 completely around the screws I4 and I5. To permanently secure the device to a, boat it is merely necessary to bend the portion I'I completely around the eye hole of the member I8.

Some changes may be made in the construction and arrangement of my improved device for holding outboard motors to boats without departing from the real spirit and purpose of my invention, and it is my intention to cover by my claims any modified forms of structure of use of mechanical equivalents which may be reasonably included within their scope.

I claim:

1. In a device of the class described, a cylinder, a shaft threaded into the lower portion of said cylinder lwith left handed threads, a hook on the bottom end of said shaft, a member threaded into the upper lend portion of said cylinder with right handed threads; said member having the upper portion of its length bent outwardly, then inwardly substantially past its longitudinal axis, and then back to itself to form a T, a circular hump at each end of the T so formed, a shaft having an eye at one end loosely embracing one of said humps, a hook on the other end of said member, a second shaft having an eye on one of its ends loosely embracing the other said hump,

'a hook on the other end of said last-mentioned member, a pin loosely extending through the center portion of said cylinder to facilitate its rotation, and a lock nut for preventing the rotation of said cylinder at times.

2. An outboard motor anchoring means comprising, an eye designed to be secured to the inside back of a boat, a cylinder, a means threaded into said cylinder and detachably hooked through said eye, and a T-shaped member having its lower end threaded into the upper portion of said cylinder and designed to operatively engage the two screw clamps of an outboard motor.

3. An outboard motor anchoring means comprising, an eye designed to be secured to the inside back of a boat, a cylinder, a means threaded into said cylinder and detachably hooked through said eye, a T-shaped member having its lower end threaded into the upper portion of said cylinder, and a hook member pivotally secured to each of the upper ends of said T-shaped member and designed to detachably engage the threaded rod portions of the two screw clamps of an outboard motor, respectively.

4. An outboard motor anchoring means comprising, an eye designed to be secured to the in- Vside back of a boat, a cylinder, a means threaded into said cylindel` and detachably hooked through said eye, a T-shaped member having its lower end threaded into the upper portion of said cylinder, a hook member pivotally secured to each of the upper ends of said T-shaped member and designed to detachably engage the threaded rod portions of the two screw clamps of an outboard motor, respectively, and a means to facilitate the manual rotation of said cylinder.

5. An outboard motor anchoring means comprising, an eye designed to be secured to the inside back of a boat, a cylinder, a means threaded into said cylinder with left handed threads and detachably hooked through said eye, a T-shaped member having its lower end threaded into the upper portion of said cylinder' with right handed threads, and a hook member pivotally secured to each of the upper ends of said T-shaped member designed to detachably engage the threaded rod portions of the two screw clamps of an outboard motor, respectively.

BYRON L. CARPENTER.

REFERENCES CTED The following references are of record in the le of this patent:

UNTTED STATES PATENTS Number Name Date 1,302,292 Blake Apr. 29, 1909 1,100,954 Caille June 23, 1914 2,372,803 Turner Apr. 3, 1945 2,376,336 Brown May 22, 1945 FORETGN PATENTS Number Country Date 12,989 Great Britain May 30, 1911 

